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A 22-year-old male patient with a radiologically detected right pelvic mass presented without any symptoms. Two years before he underwent appendectomy due to acute appendicitis elsewhere, and a carcinoid was incidentally diagnosed. Our revised histological report confirmed a conventional carcinoid of the appendix, excluding a goblet cell carcinoid (adenocarcinoid). The tumour infiltrated the whole wall thickness without serosal invasion; margins were negative; the macroscopic size of the tumour had been omitted in the original pathology report.
Immunohistochemical chromogranin-A, neuron specific enolase, and synaptophysin were positive. Follow-up was negative over the two subsequent …
Robin Spiller, editor
NF, FL, LM, GP, LB, KL, GdiM, BG, DR, GB, CMG, SB and MS are members of the IEO NET Study Group, European Institute of Oncology, Milan, Italy.